1,721,026 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Opportunities and barriers to NBS at the EU, national, regional and local scales, with suggested reforms and innovations
No full textThis deliverable builds on the comparative case studies of PHUSICOS's D5.1 by identifying institutional, legal, regulatory, social and economic opportunities, as well as barriers to NBS implementation. Governance opportunities and policy bottlenecks are scoped out at the EU, national and regional levels (e.g., EU directives and frameworks, as well as policy and financial mechanisms) that can help promote and enhance the adoption of NBS.
Results highlight critical governance factors that are currently facilitating or limiting NBS implementation and mainstreaming during their design, planning, implementation, monitoring and maintenance processes. </p
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Interaksjon mellom elva Gausa og lokalt grunnvann under flomhendelser og mulig effekt av plassering og utforming av flomvoll
Get PDFEtter flommene i Gudbrandsdalen i 2011 og 2013 ble det bestemt at det skulle utarbeides en ny regionalplan for Innlandet Fylke. Den heter Lågenplanen og kvalifiserte fylket for å være med i Horizont2020s PHUSICOS-prosjekt. Prosjektet setter søkelys på naturbaserte løsninger (NBS) mot naturfarer som flom og skred. I Lågenplanen ble det etterlyst mer kunnskap om strømningsforholdene hvis tiltak mot flom iverksettes langs Gausa. Fokuset i oppgaven er derfor på endringer i erosjonspotensiale i Gausa hvis en ny, tilbaketrukket flomvoll bygges langs elva. I tillegg sees det på responsen i grunnvannssonen som følger av endret strømningsmønster med tilbaketrukket flomvoll. Det diskuteres også i hvilken grad tiltakene er å regne som naturbaserte løsninger.
Tilnærmingen til oppgaven gikk ut på å kartlegge geologiske og hydrogeologiske forhold langs Gausa. Blant annet ble sedimentprøver samlet inn langs Gausa, i flomskogen og på den dyrkede marken sør for elva for å fastslå hydraulisk ledningsevne i overflaten. Det ble gjennomført slug-test for å finne hydraulisk ledningsevne dypere ned i grunnen. Modified Philip Dunne-metoden ble gjennomført for å analysere infiltrasjonsevnen på overflaten. Det ble installert 3 grunnvannsbrønner for å registrere fluktuasjoner i grunnvannet gjennom våren, sommeren og ut på høsten. Georadar ble brukt for å kartlegge grunnvannsnivået, og validert ved å sammenlikne data fra grunnvannsbrønnene. Data som ble samlet inn la grunnlag for å lage to hydrauliske modeller i henholdsvis HEC-RAS 6.0.0 og MODFLOW-2005. I disse modellene kan virkningene av tilbaketrukket flomvoll beregnes.
Resultatene viser at det er god kontakt mellom grunnvann og elv. Hydraulisk ledningsevne i sedimentene stemmer bra med det som antas å være fluviale og glasifluviale avsetninger på lokaliteten. Grove beregninger viser at grunnvannet er en begrenset bidragsyter til vannføringen i Gausa. Tilbaketrukket flomvoll fører til høyere vannstand i elva, ifølge beregninger i HEC-RAS. Skjærspenning og hastighet synker som følger av tiltaket. Dette reduserer erosjonspotensialet langs øvre deler av strekket. Sammenliknet med flomvoll langs elvebredden, viser tilbaketrukket flomvoll raskere grunnvannsrespons i bak flomverk under kulminasjonsvannføring. Grunnvannstrykket øker, men viser ikke verdier som kan føre til overflatevann bak flomverk.
Grunnvannsmodellen som er laget i MODFLOW kan ved hjelp av mer informasjon om grunnen utbedres og bli mer presis. En morfologisk analyse av elvebunnen kan si mer om erosjonspotensialet når skjærspenning synker som følger av tilbaketrukket flomvoll. Det er også interessant å undersøke konsekvensene av tilbaketrukket flomverk for utløpet av Gausa, der den møter Lågen. Her er det avsatt store mengder masser. Hvordan et endret strømningsmønster lengre opp i Gausa påvirker disse avsetningene burde derfor undersøkes nærmere
- …
